Paraffin powder and process of making it.



UNITED STATES PATENT. orrron.

'AUGUST E. NIENSTAIDT, F BENSONHURST, NEW YORK.

PABAFFIN POWDER AND PROCESS OF MAKING-IT. i

No Drawing.

To all whom) it may concern:

Be it known that I, AUGUST E. NIENSTADT,

' a citizen of the United States of America,

and a resident of Bensonhurst, county of Kings, and State of New York,have invented certain new and useful Improvements in Parafiin Powder andProcesses of Making It, of which the following is a specification.

This invention has reference to a novel paraflin paste and powder andthe process of producing them. It is the special object of the presentinvention to produce an aque-.

ous paraflin paste and if the water is re-' moved therefrom a fine drypowder ofpar-- aflin remains.

As is well known paraffin is a saturated hydrocarbon of the fatty seriesand entirely neutral. It is void of chemical atfinity as itsnameindicates and therefore adapted.

for various uses for which substances being more orless chemicallyactive can not be used.

" the paper mass.

coating the paper therewith whereby the piper becomes impervious towater. Very e paper may be impregnated with the paraflin but heavierpaper practically is coated as the parafiin penetrates but slightlyFurthermore .all paraflin papers have a greasy touch which isundesirable for obvious reasons.

The present invention has for its ec1alresult. This aqueous parafiinpaste may bemixed with paper pulp in the-beater and intimately mixedtherein with vthe pulp sothat every particle of paper fiber is coveredas superior result is obtained and even thick evenly wlth the same. Thepa er pulp, thus impregnated with the para paste then undergoes theusual process of manufacturing paper and when the paper webs finallypass through steam heated rollers the finely divided paraffin within thepaper pulp melts, and when the paper is perfectly dry-it is I waterproofor impervious throughout the entire mass and not only on the surface.

In fact each fine fiber of the paper is rendered impervious to water andtherefore a I Heretofore parafin paper, for instance, has been producedby meltlng 'parafiinand specification of Letters Patent. Patented Sept.11, 1917,

Application filed February 3, 1916. Serial No. 75,935.

sheets of paper or cardboard are waterproof throughout their entire'mass and as per:

fectly waterproof in the interior portions as on the surface.

In carrylng the invention into efi'ectI substantially proceed asfollows:

First I prepare a weak solution; of an alkali, then sucient-stearic1acid is added to neutralize the alkali. By boilin the massa uniform ammonium soap resu ts. A small. quantity of the solutionof'the stearate of ammonium thus obtained is added to melted paraflinkept liquid at aslow a temperature as possible. 'The mixture is stirreduntil ithas cooled off when it forms a paste containing the parafiin ina very finely divided state which paste may be diluted with water. Theproportions in which the ammonium stearate is mixed with the meltedparaflin may vary within. reasonable limit. For ob-. taining goodresults a weak soap/solution containing from 3 to 5 per cent. of'the am-'shavmg.

The paste also may form a component forshaving or other cream for toiletpurposes. The creams which are at present in the marreferably ammoniawater is used,

ket are mostly made with stearic acid and borax, they become easilyrancid and make the skin dry on account of the free 'stearic acidcontainedtherein. Creams containing finely divided, practically pureparafin never become rancid because parafiin is chemically indifferentand does not undergo any chemical change atall under the prevailingconditions.

Paraflin paste or powder may form a component of ordinary toilet orwashing soap which greatly improves the same. The paraflin paste orpowder further reduces the price of soa considerably and overcomes itsbad qua 'ty resulting from occurring alkaline character so that the mostsensitive Skin will not be afi'ected. The paraifin does not weaken thefoamin ualities of soaps. The finely divided para%n in form of paste-may be applied to sores, wounds and diseases for medicinal purposes tokeep out dust and the like.

I claim as my invention: 7 I. Elie recess of producing paraffin m afinely divided state consisting in melting the parafiin, incorporatingtherewith a solution containing a small quantity of 'an alkalistearate', stirring the mixture. until cooled ofl, and removing thesolvent of the stearate therefrom.

2. The recess of producing parahin a.

has cooled off, and removing the water therefrom to form a fine powder.

3. As a novel product of manufacture paraffin in a finely dividedcondition composed.

of paraflin with a little ammonium stearate in a finely divided state,and existing in form of a fine powder.

4. As a novel product of manufacture paraflin in a. finely dividedcondition composed of about 95fto 97 per cent. of parafin and 5 to 3 percent. of ammonium stearate and existing in form of a fine dry powder.

Signed at New York, N. Y., this 29 day of anuary, 1916.

AUGUST NIENST ADT. Witnesses:

Lrnnnr SCHMIDT,- SQPHIE Glam,

